W E K A
4.1
4.1
  • WEKA v4.1 documentation
  • WEKA System Overview
    • About the WEKA system
    • SSD capacity management
    • Filesystems, object stores, and filesystem groups
    • WEKA networking
    • Data lifecycle management
    • WEKA client and mount modes
    • WEKA containers architecture overview
    • Glossary
  • Getting Started with WEKA
    • Quick installation guide
    • Manage the system using the WEKA CLI
    • Manage the system using the WEKA GUI
    • Run first IOs with WEKA filesystem
    • Getting started with WEKA REST API
  • Planning and Installation
    • Prerequisites for installation
    • WEKA installation on bare metal
      • Plan the WEKA system Installation
      • Prepare the system for WEKA software installation
        • Enable the SR-IOV
      • Obtain the WEKA software installation package
      • WEKA cluster installation
        • WEKA legacy system installation process
      • Add clients
    • WEKA installation on AWS
      • Self-service portal
      • CloudFormation template generator
      • Deployment types
      • AWS outposts deployment
      • Supported EC2 instance types
      • Add clients
      • Auto scaling group
      • Troubleshooting
    • WEKA installation on Azure
    • WEKA installation on GCP
      • WEKA project description
      • Deployment on GCP using Terraform
      • GCP Terraform package description
      • Required services and supported regions
      • Supported machine types and storage
      • Auto-scale instances in GCP
      • Add clients
      • Troubleshooting
  • Performance
    • WEKA performance tests
      • Test environment details
  • WEKA Filesystems & Object Stores
    • Manage object stores
      • Manage object stores using the GUI
      • Manage object stores using the CLI
    • Manage filesystem groups
      • Manage filesystem groups using the GUI
      • Manage filesystem groups using the CLI
    • Manage filesystems
      • Manage filesystems using the GUI
      • Manage filesystems using the CLI
    • Attach or detach object store buckets
      • Attach or detach object store bucket using the GUI
      • Attach or detach object store buckets using the CLI
    • Advanced data lifecycle management
      • Advanced time-based policies for data storage location
      • Data management in tiered filesystems
      • Transition between tiered and SSD-only filesystems
      • Manual fetch and release of data
    • Mount filesystems
    • Snapshots
      • Manage snapshots using the GUI
      • Manage snapshots using the CLI
    • Snap-To-Object
      • Manage Snap-To-Object using the GUI
      • Manage Snap-To-Object using the CLI
    • Quota management
      • Manage quotas using the GUI
      • Manage quotas using the CLI
  • Additional Protocols
    • Manage the NFS protocol
      • Supported NFS client mount options
      • Manage NFS networking using the GUI
      • Manage NFS networking using the CLI
    • Manage the SMB protocol
      • Manage SMB using the GUI
      • Manage SMB using the CLI
    • Manage the S3 protocol
      • S3 cluster management
        • Manage the S3 service using the GUI
        • Manage the S3 service using the CLI
      • S3 buckets management
        • Manage S3 buckets using the GUI
        • Manage S3 buckets using the CLI
      • S3 users and authentication
        • Manage S3 users and authentication using the CLI
        • Manage S3 service accounts using the CLI
      • S3 rules information lifecycle management (ILM)
        • Manage S3 lifecycle rules using the GUI
        • Manage S3 lifecycle rules using the CLI
      • Audit S3 APIs
        • Configure audit webhook using the GUI
        • Configure audit webhook using the CLI
        • Example: How to use Splunk to audit S3
      • S3 supported APIs and limitations
      • S3 examples using boto3
  • Operation Guide
    • Alerts
      • Manage alerts using the GUI
      • Manage alerts using the CLI
      • List of alerts and corrective actions
    • Events
      • Manage events using the GUI
      • Manage events using the CLI
      • List of events
    • Statistics
      • Manage statistics using the GUI
      • Manage statistics using the CLI
      • List of statistics
    • System congestion
    • Security management
      • Obtain authentication tokens
      • KMS management
        • Manage KMS using the GUI
        • Manage KMS using the CLI
      • TLS certificate management
        • Manage the TLS certificate using the GUI
        • Manage the TLS certificate using the CLI
      • CA certificate management
        • Manage the CA certificate using the GUI
        • Manage the CA certificate using the CLI
      • Account lockout threshold policy management
        • Manage the account lockout threshold policy using GUI
        • Manage the account lockout threshold policy using CLI
      • Manage the login banner
        • Manage the login banner using the GUI
        • Manage the login banner using the CLI
    • User management
      • Manage users using the GUI
      • Manage users using the CLI
    • Organizations management
      • Manage organizations using the GUI
      • Manage organizations using the CLI
      • Mount authentication for organization filesystems
    • Expand and shrink cluster resources
      • Add a backend server in a multiple containers architecture
      • Add a backend server in a legacy architecture
      • Expand specific resources of a container
      • Shrink a cluster
    • Background tasks
    • Upgrade WEKA versions
  • Billing & Licensing
    • License overview
    • Classic license
    • Pay-As-You-Go license
  • Support
    • Prerequisites and compatibility
    • Get support for your WEKA system
    • Diagnostics management
      • Traces management
        • Manage traces using the GUI
        • Manage traces using the CLI
      • Protocols debug level management
        • Manage protocols debug level using the GUI
        • Manage protocols debug level using the CLI
      • Diagnostics data management
    • Weka Home - The WEKA support cloud
      • Local Weka Home overview
      • Local Weka Home deployment
      • Set the Local Weka Home to send alerts or events
      • Download the Usage Report or Analytics
  • Appendix
    • WEKA CSI Plugin
    • Set up the WEKAmon external monitoring
    • Set up the SnapTool external snapshots manager
  • REST API Reference Guide
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On this page
  • Before you begin
  • API overview
  • Request body
  • Custom client AMI
  • Dedicated vs. shared client networking
  • Returned result
  • CloudFormation template parameters
  • IAM role created in the template
  • Additional operations
  1. Planning and Installation
  2. WEKA installation on AWS

CloudFormation template generator

This page shows how to create CloudFormation templates using an API call. The same API calls are used by the Self-Service Portal to generate the CloudFormation template before redirecting to AWS.

PreviousSelf-service portalNextDeployment types

Last updated 2 years ago

Before you begin

The APIs described here require an API token which can be obtained at . Obtaining this token requires registration if you do not have an account.

API overview

To generate a CloudFormation template, it is first necessary to decide which WEKA system version is to be installed. This is performed using the https://<token>@get.weka.io/dist/v1/release API which provides a list of all available versions:

$ curl https://<token>@get.weka.io/dist/v1/release
{
   "num_results" : 8,
   "page" : 1,
   "page_size" : 50,
   "num_pages" : 1,
   "objects" : [
      {
         "id" : "3.6.1",
         "public" : true,
         "final" : true,
         "trunk_id" : "",
         "s3_path" : "releases/3.6.1"
         .
         .
         .
      },
      ...
   ]
}

This list of releases available for installation is sorted backward from the most recent release. By default, 50 results are provided per page. To receive more results, use the page=N query parameter to receive the Nth page.

Note: Usually, a request for more results is not necessary, since the first page contains the most recent releases.

Each release contains an ID field that identifies the release. In the examples below, version 3.6.1 has been used.

To generate a CloudFormation template, make a POST request to the https://<token>@get.weka.io/dist/v1/aws/cfn/<version>API:

$ spec='
{
  "cluster": [
    {
      "role": "backend",
      "instance_type": "i3en.2xlarge",
      "count": 10
    },
    {
      "role": "client",
      "instance_type": "r3.xlarge",
      "count": 2
    }
  ]
}
'
$ curl -X POST -H 'Content-Type: application/json' -d "$spec" https://<token>@get.weka.io/dist/v1/aws/cfn/3.6.1
{
   "url" : "https://wekaio-cfn-templates-prod.s3.amazonaws.com/cjibjp7ps000001o9pncqywv6.json",
   "quick_create_stack" : {
      "ap-southeast-2" : "...",
      ...
   }
}

Request body

The https://<token>@get.weka.io/dist/v1/aws/cfn/<version> API provides a JSON object with a cluster property. cluster is a list of instance types, roles, and counts:

Property

Description

role

instance_type

count

The number of instances of this type to be included in the template.

ami_id

net

It is possible to specify multiple groups of instances by adding more role/instance_type/count objects to the clusterarray, as long as there are at least 6 backend instances (the minimum number of backend instances required to deploy a cluster).

Custom client AMI

When specifying an ami_id in client groups, the specified AMI will be used when launching the client instances. The Weka system will be installed on top of this AMI in a separate EBS volume.

When ami_id is not specified, the client instances are launched with the latest Amazon Linux supported by the Weka system version selected to be installed.

Note the following when using a custom AMI-ID:

  • AMIs are stored per region. Make sure to specify an AMI-ID that matches the region in which the CloudFormation template is being deployed.

Dedicated vs. shared client networking

By default, both client and backend instances are launched in the dedicated networking mode. Although this cannot be changed for backends, it can be controlled for client instances.

Dedicated networking means that an ENI is created for internal cluster traffic in the client instances. This allows the Weka system to bypass the kernel and provide throughput that is only limited by the instance network.

In shared networking, the client shares the instance’s network interface with all traffic passing through the kernel. Although slower, this mode is sometimes desirable when an ENI cannot be allocated or if the operating system does not allow more than one NIC.

Returned result

The returned result is a JSON object with two properties: url and quick_create_stack.

The url property is a URL to an S3 object containing the generated template.

To deploy the CloudFormation template through the AWS console, a quick_create_stack property contains links to the console for each public AWS region. These links are pre-filled with your API token as a parameter to the template.

Note: CloudFormation template URLs are valid for up to 1 week.

It is also possible to receive the template directly from the API call, without saving it in a bucket. To do this, use a ?type=templatequery parameter:

$ spec='...'  # same as above
$ curl -X POST -H 'Content-Type: application/json' -d "$spec" https://<token>@get.weka.io/dist/v1/aws/cfn/3.6.1?type=template
{"AWSTemplateFormatVersion": "2010-09-09", ...

CloudFormation template parameters

IAM role created in the template

The CloudFormation template contains an instance role that allows the Weka system instances to call the following AWS APIs:

  • ec2:DescribeInstances

  • ec2:DescribeNetworkInterfaces

  • ec2:AttachNetworkInterface

  • ec2:CreateNetworkInterface

  • ec2:ModifyNetworkInterfaceAttribute

  • ec2:DeleteNetworkInterface

In case tiering is configured, additional AWS APIs permissions are given:

  • s3:DeleteObject

  • s3:GetObject

  • s3:PutObject

  • s3:ListBucket

Additional operations

Once a CloudFormation template has been generated, it is possible to create a stack from it using the AWS console or the AWS CLI.

When the deployment is complete, the stack status will update to CREATE_COMPLETE and it is possible to access the Weka system cluster GUI by going to the Outputs tab of the CloudFormation stack and clicking the GUI link.

With that, a filesystem is created and mounted on all instances. This shared filesystem is mounted on /mnt/weka in each cluster instance.

In the example above, a template was generated for a cluster with 10 i3en.2xlarge backend instances and 2 r3.xlarge client instances. Refer to the page to learn more, and see all supported instance types in .

Either backend or client;see for more information.

One of the supported instance types according to the role and supported instances in .

When role is client, it is possible to specify a custom AMI-ID. See below to learn more.

Either dedicated or shared, in client role only. See below.

The AMI operating system must be one of the supported operating systems listed in the page of the version being installed. If the AMI defined is not supported or has an unsupported operating system, the installation may fail and the CloudFormation stack will not be created successfully.

The CloudFormation stacks parameters are described in the section.

Note: If there is a valid entitlement or PAYG plan in , the stack will attempt creating a license, deploy it to the cluster, and start IO automatically.

If the deployment was unsuccessful, see for the resolution of common deployment issues.

https://get.weka.io/ui/account/api-tokens
Deployment Types
Supported EC2 Instance Types
get.weka.io
Troubleshooting
Deployment Types
Supported EC2 Instance Types
Custom Client AMI
Dedicated vs. Shared Client Networking
prerequisites
Cluster CloudFormation Stack